15540246212 has 12 divisors (see below), whose sum is σ = 27500998140. Its totient is φ = 7682818176.

The previous prime is 15540246203. The next prime is 15540246221. The reversal of 15540246212 is 21264204551.

15540246212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (15540246203) and next prime (15540246221).

It can be written as a sum of positive squares in 2 ways, for example, as 10348179076 + 5192067136 = 101726^2 + 72056^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21825833 + ... + 21826544.

It is an arithmetic number, because the mean of its divisors is an integer number (2291749845).

Almost surely, 2^15540246212 is an apocalyptic number.

It is an amenable number.

15540246212 is a deficient number, since it is larger than the sum of its proper divisors (11960751928).

15540246212 is a wasteful number, since it uses less digits than its factorization.

15540246212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43652470 (or 43652468 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 15540246212 in words is "fifteen billion, five hundred forty million, two hundred forty-six thousand, two hundred twelve".